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How to read RPMs on Allis 201
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brbrooks83 View Drop Down
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Joined: 17 Sep 2011
Location: Strawberry Plai
Points: 144 		Post Options Post Options   Thanks (0) Thanks(0)   Quote brbrooks83 Quote  Post ReplyReply Direct Link To This Post Topic: How to read RPMs on Allis 201
    Posted: 01 Oct 2012 at 11:40am
Is there a easy way to read RPMs on on my WC? I want to do a little fine tuning for pulling Thanks Brandon
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albatros_3 View Drop Down
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Joined: 16 Apr 2012
Location: SE Michigan
Points: 451 		Post Options Post Options   Thanks (0) Thanks(0)   Quote albatros_3 Quote  Post ReplyReply Direct Link To This Post Posted: 01 Oct 2012 at 12:44pm
I use a Dwell/Tach meter on the WD-45 when I'm fine tuning everything. You can pick them up at just about any auto parts store. 
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SteveM C/IL View Drop Down
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Joined: 12 Sep 2009
Location: Shelbyville IL
Points: 8628 		Post Options Post Options   Thanks (0) Thanks(0)   Quote SteveM C/IL Quote  Post ReplyReply Direct Link To This Post Posted: 01 Oct 2012 at 12:58pm
Don't know if that method will work on a magneto system.Bout all else you can do is use a shaft tach on the pto. Then,of course,you need to know engine speed at say 540 pto.Many tractors have 540 pto at less than high idle rpm
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brbrooks83 View Drop Down
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Joined: 17 Sep 2011
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Points: 144 		Post Options Post Options   Thanks (0) Thanks(0)   Quote brbrooks83 Quote  Post ReplyReply Direct Link To This Post Posted: 01 Oct 2012 at 1:14pm
Its converted to a 12volt system
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Butch(OH) View Drop Down
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Joined: 11 Sep 2009
Location: Lucerne Ohio
Points: 3842 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Butch(OH) Quote  Post ReplyReply Direct Link To This Post Posted: 01 Oct 2012 at 1:27pm
 
Best/ chespest that works in almost all situations is a photo tach. Mine came from Harbor Freight on sale $39 and works great.
Next best that works on any shaft you can get it on would be a contact type tach.  S-W made them for years and maybe still do? but they aren't pocket change cheap at least my pocket change. Also found on ebay.
Cheap but  last choice for me would be a dwell tach meter because all it is good for is engines.
 
Actualy I have all three in the shop but the only one that sees much usage now is the photo tach.
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